import Vue from 'vue'
import VueRouter from 'vue-router'
import Login from '../components/Login.vue'
import Home from '../components/Home.vue'
import Welcome from '../components/Welcome.vue'
import Users from '../components/user/Users.vue'
import Rights from '../components/power/Rights.vue'
import Roles from '../components/power/Roles.vue'
import Cate from '../components/goods/Cate.vue'

Vue.use(VueRouter)

const routes = [
  {path:'/',redirect:'/login'},
  {
    path: '/login',
    name: 'Login',
    component: Login
  },
  {
    path: '/home',
    name: 'Home',
    component: Home,
    redirect:'/welcome',
    children:[
      {path:'/welcome', component:Welcome},
      {path:'/users', component:Users},
      {path:'/rights', component:Rights},
      {path:'/roles', component:Roles},
      {path:'/categories', component:Cate}
    ]
  },
]

const router = new VueRouter({
  routes
})
//挂载路由导航守卫
router.beforeEach((to,from,next)=>{
  //to将要访问的路径
  //from代表从nave路径跳转而来
  //new 是一个函数 表示放行
  //next() 放行 next('/login') 强制跳转
  if(to.path==='/login') return next()
  //获取token
  const tokenStr = window.sessionStorage.getItem('token')
  if(!tokenStr) return next('/login')
  next()
})
export default router
